tar on Mac does not like empty tar from git archive

Git 1.8.2.1 includes commit bd54cf17 - archive: handle commits with an empty tree

Test 2 of t5004-archive-corner-cases, "tar archive of empty tree is empty", fails on Mac OS X 10.8.3 (with XCode 4.6.1) since the tar command exits with return code 1 on the generated  tar file.

expecting success: 
	git archive --format=tar HEAD >empty.tar &&
	make_dir extract &&
	"$TAR" xf empty.tar -C extract &&
	check_dir extract

tar: Damaged tar archive
tar: Error exit delayed from previous errors.
not ok 2 - tar archive of empty tree is empty

tar tf "trash directory.t5004-archive-corner-cases/empty.tar"; echo $?
tar: Damaged tar archive
tar: Error exit delayed from previous errors.
1

tar --version
bsdtar 2.8.3 - libarchive 2.8.3

It appears that bsdtar does not like the empty tar files created by git archive. An empty tar file created by bsdtar is accepted.

tar cT /dev/null | tar t; echo $?
0

-- 

BJ Hargrave